Motor.



Patented May 27, I902. J. M. MAXWELL.

MOTOR.

(Application filed Mar. 6,

(No Model.)

,5 line 1 1 of Fig. 2.

UNlTED STATES PATENT OFFICE.

JAMES M. MAXWELL, OF PITTSBURG, PENNSYLVANIA.

MOTOR.

SPECIFICATION forming part of Letters Patent N0.'701,067, dated May 27, 1902.

Application filed March 6, 1902. Serial No. 96.9%. (No model.)

This invention relates to certain new and useful improvements in motors, and more.

particularly to that class whereby steam is utilized as the power.

The object of my invention is to provide a motor whereby the use of nuts and bolts,

valves, pistons, and their connections, which are commonly used in ordinary motors, is entirely dispensed with.

My invention still further contemplates to 0 provide a motor of this character that will be extremely simple in construction, strong,

durable, comparatively inexpensive to manufacture, and highly efficient in its use.

With the above and other objects iuview 5 the invention consists in the novel construction, combination, and arrangement of parts, to be hereinafter more fully described, and specifically pointed out in the claims.

In describing the invention in detail refer- ;o ence is had to the accompanying drawings,

forming a part of this specification ,and wherein like numerals of reference indicate like parts throughout the several views,in which-- Figure 1 is a longitudinal section taken on Fig. 2 isan end view with the end plate removed. Fig. 3 is a section 'on line 3 3 of Fig. 1. Fig. 3 is a modified form of the'casing. Fig. 4. is a section on line 1 4: of Fig. 1'. Fig. 5 is a top plan view to of one of the propellers with the arms removed. Fig.6 is a section on the line 5 5 of Fig.

5. Fig. 7 is a detail view of one of the arms.

Fig. 8 is a detail view of one of the shoes.

In the accompanying drawings the refer- 5 ence-numeral 1 indicates the outer casing of the motor, said casing being constructed of any suitable material and having disposed therein the partitions 2 and 3, said partitions being spaced equidistantly. The partitions ;o 2 and 3 have apertures 4. and 5 for the reception of the casing 6, to be hereinafter de- Mountcd within the casing 1 is a scribed.

cured to the ends of the arms 16 are the shoes 1 17, these shoes being secured in such a manner as will permit the same to have a rocking movement. Between the body portion 11 of the propellers and the arm 16 is secured a spring 18, said spring being of the ordinary construction and serving to hold the arms and shoes in an outward position, at the same time allowing the arms to lie snugly within the recess of the body portion 11 of the propeller.

Secured in the partition 2 and 3 is a band 6, said band being constructed in such a manner as to afford a guideway for the steam-propellers. The outer periphery of said band carries a steam-inlet 19, and the inner guides of the steam-propellers are constructed in such a manner between the sprocket-wheels as to allow the steam to escape, as indicated at 20, said steam passing out into the casing and then through the steam-outlet 21. It will be noted that the casing is constructed larger at the top of the partition than it is at the lower part thereof. This enlarged portion allows the arms 16 to move outwardly, thus prohibiting the steam to pass beyond without carrying the propellers forward and revolve the sprocket-wheels, said sprocketwheels havingsuitable recesses 22 to receive the steam-propellers as the same are carried over the wheels by the sprocket-chain. Any number of recesses may be employed, depending on the number of propellers that may be placed on the chain. 7

It will be seen that a continualmovement of the propellers forward will cause friction and the strain to be exerted upon the central shaft. To avoid this, I construct a similar motor in the outer end of the casing, as indicated at 23, the steam-propellers traveling in the opposite direction from those shown in the casing 6, the object being to equalize the amount of friction and strain exerted upon the central shaft.

The reference-numeral 24 represents a central partition between the propellers, the boundary of the propellers on their outer side being limited by the sides of the casing, as shown in Fig. 2. The steam to propel the propellers in the casing 23 enters the inlet 19 and may be exhausted by the outlets 25.

In Fig. 3 I have shown a modified form of constructing the casing 6, wherein I provide recesses on each side thereof to act as a guide for the head 10 of the body portion of the propeller 11. It will be noted that the propeller may have a tendency to move sidewise in the casing, and thus permit the escape of the steam, and the object of these recesses is to overcome this difliculty and provide a casing that will permit the propellers to travel in a straight path, thus not permitting the steam to escape.

The operation of my improved motor is as follows: The steam passing in the inlet 19 is prevented from passing forward by means of' the arms 16, which are actuated by the spring 18, the steam forcing the propellers forward, causing the sprocket wheels to revolve, whereby the power may be realized from the shafts 7. The propeller will be guided by means of the casing 6, and as the propellers travel around the sprocket-wheel 8 the arms .16 will be closed, as the propeller enters the small portion of the casing, as shown in Fig. 3, and again resume their natural position as they pass into the large portion, which is in section in Fig. 4, the steam exhausting through the openings 20, then passing into the casing, and out through the outlet 21. The same operation is performed in the casing 2 The many advantages obtained by the use of my improved motor will be readily apparent from the foregoing description, taken in connection with the accompanying drawings.

It will be noted that various changes may be made in the details of construction without departing from the general spirit of my invention.

Having fully described my invention, What I claim as new, and desire to secure by Letters Patent, is

1. In a motor, the combination of an outer casing having disposed therein partitions, inner casings carried by said partitions, said inner casings forming guideways, the outer casing carrying central shafts having mounted thereon sprocket-wheels, said sprocketwheels carrying an endless chain, and in turn carrying. propellers, substantially as described.

2. In a motor, the combination of an outer casing, having disposed therein partitions, an inner casing carried by said partitions, the said inner casing having suitably -mounted therein sprocket-wheels carrying an endless chain and in turn carrying propellers, said propellers having secured to their forward ends arms carrying shoes, said arms being actuated by means of springs, the inner casing having suitable steam-inlets, and the inner and outer casings having suitable steamoutlets, substantially as described.

3. In a motor, the combination of an outer casing carrying partitions, said partitions carrying an inner casing which is formed in a manner as to form a guideway for the propellers, the upper part of said casing being constructed to allow the arms of the propellers to extend outwardly and the lower part of the casing being formed in such a manner as to press the arms inwardly, allowing the propeller to pass through this contracted portion, the sprocket-wheels carrying suitable recesses for the admission of the propellers as the same pass around their periphery, substantially as described.

In testimony whereof I afi"1x my signature in the presence of two witnesses.

JAMES M. MAXWELL.

Witnesses:

JOHN NOLAND, E. E. POTTER. 

